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This document provides an introduction to the Oracle Applications R12 architecture. It describes the business architecture principles of modern foundation, completeness, end-to-end integration, global capability, and rapid implementation. The technical architecture is discussed including the forms-based user interface, self-service capabilities, business intelligence, and mobile access. The basic three-tier architecture of desktop/client, application, and database tiers is outlined along with an overview of the components in the applications tier and database tier.
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- 1. 3 Copyright © 2007,Oracle. All rights reserved. Introduction to Oracle Applications R12
- 2. Copyright © 2007,Oracle. All rights reserved.3 - 2 Course Objectives After completing this lesson, you should be able to describe the following: • Footprint of R12 E-Business Suite • Benefits of R12 E-Business Suite • R12 E-Business Suite architecture • Major components of the architecture • File system and database structure
- 3. Copyright © 2007,Oracle. All rights reserved.3 - 3 Oracle E-Business Suite Customers Employees PartnersSuppliers
- 4. Copyright © 2007,Oracle. All rights reserved.3 - 4 Complete E-Business Suite from Oracle • Automate key internal business processes • Extend automation and collaborate with your trading partners • Drive continuous improvement with real-time intelligence Order Procure Fulfill Finance Develop Market Sell Plan MakeService Maintain HR Projects Contracts Customers Suppliers Products E-Business Suite Fusion Business Intelligence
- 5. Copyright © 2007,Oracle. All rights reserved.3 - 5 Integrated, Yet Modular The open applications solution enables you to: • Leverage investment in existing technology • Eliminate disparate systems as needed Legacy Environment Vendor Y Planning Vendor X Human Resources Vendor Z Purchasing Oracle Marketing Oracle Finance
- 6. Copyright © 2007,Oracle. All rights reserved.3 - 6 Benefits of Oracle E-Business Suite • Available in multiple languages • Supports multiple currencies • Supports flexible management of business processes • Has a common data model • Supports statutory and customary local requirements • Is built on open standards • Collaborates with trading partners
- 7. Copyright © 2007,Oracle. All rights reserved.3 - 7 Information-Driven Applications Develop Market Sell Order Plan Procure Make Fulfill Service Maintain Finance HR Projects Contracts Customers, Suppliers, Products, … Philosophy behind Oracle E-Business Suite • Start with a common data model that produces a single definition of key business entities (customers, suppliers, products, etc) • Build a robust suite of applications designed to work together • Support modular deployment of tailorable business flows • Promote low-cost integration with service oriented, standards-based architecture
- 8. Copyright © 2007,Oracle. All rights reserved.3 - 8 Major Oracle Application Product Families • Oracle Financials • Project Management Product Suite • Supply Chain Planning and Management Suite • Oracle Manufacturing: Discrete and Process Management • Human Resources Management System Suite • Customer Relationship Management Suite Customer Relationship Management Supply Chain Management Manufacturing Finance Projects Human Resources Oracle Workflow
- 9. Copyright © 2007,Oracle. All rights reserved.3 - 9 R12 E-Business Suite Footprint General Ledger Receivables Payables Assets Cash Management Global Consolidation System Advanced Collections Internet Expenses iReceivables Treasury Lease Management Internal Controls Manager Financials Centralized Solution Set (FINS) Financial Services Accounting Hub (FSAH) Daily Business Intelligence (DBI) Balanced Scorecard Financials & Sales Analyzer Enterprise Planning and Budgeting Profitability Manager Financial Consolidation Hub Government, Risk and Compliance Manager Application Access Controls Application Configuration Controls Governance, Risk and Compliance Intelligence Financials Corporate Performance Mgmt. Government, Risk & Compliance New in R12
- 10. Copyright © 2007,Oracle. All rights reserved.3 - 10 R12 E-Business Suite Footprint Human Resources Self-Service Human Resources Advanced Benefits Compensation Workbench iRecruitment Payroll Performance Management Time and Labor Workforce Scheduling Approvals Management Learning Management iLearning Tutor DBI for HR Project Costing Project Billing Project Resource Management Project Collaboration Project Management Project Portfolio Analysis Project Contracts DBI for Projects Human Resources Management Projects New in R12
- 11. Copyright © 2007,Oracle. All rights reserved.3 - 11 R12 E-Business Suite Footprint Advanced Supply Chain Planning Constraint Based Optimization Inventory Optimization Global Order Promising Collaborative Planning Strategic Network Optimization Demand Management Advanced Forecasting & Demand Management Real-time Sales & Operations Planning Predictive Trade Planning Deduction and Settlement Management Trade Promotion Optimization Order Management Advanced Pricing Release Management Sales Contracts Configurator iStore Supply Chain Planning and Order Management Intelligence Enterprise Asset Management Self-Service Work Requests Asset Tracking Property Manager Supply Chain Planning Asset Lifecycle Management Order Management New in R12
- 12. Copyright © 2007,Oracle. All rights reserved.3 - 12 R12 E-Business Suite Footprint Purchasing Sourcing Sourcing Optimization iSupplier Portal Procurement Contracts Services Procurement Advanced Pricing iProcurement DBI for Procurement Discrete Manufacturing Manufacturing Execution System Mobile Supply Chain Applications Flow Manufacturing Flow Sequencing Production Scheduling Repetitive Manufacturing Optimization Process Manufacturing ManufacturingProcurement
- 13. Copyright © 2007,Oracle. All rights reserved.3 - 13 R12 E-Business Suite Footprint Inventory Management Mobile Supply Chain Applications Warehouse Management Transportation Management Transportation Operational Planning Logistics Inventory Visibility Forwarding & Brokering Operations Freight Payment, Billing & Claims Transportation Sourcing Transportation Cooperative Routing Fusion Transportation Intelligence Product Lifecycle Management Product Data Synchronization for GDSN and UCCnet Services CADView-3D Customer Data Management Product Information Management Financial Consolidation Logistics Product Lifecycle Management Master Data Management (Hubs) New in R12
- 14. Copyright © 2007,Oracle. All rights reserved.3 - 14 R12 E-Business Suite Footprint Marketing Trade Management Advanced Pricing TeleSales Field Sales Sales for Handhelds Quoting Partner Management Proposals Incentive Compensation Marketing & Sales Intelligence TeleService Service Contracts Field Service Spares Management Advanced Scheduler Mobile Field Service Depot Repair iSupport Service Intelligence Advanced Inbound Telephony Advanced Outbound Telephony Email Center Scripting Marketing and Sales Service Interaction Center Technology
- 15. Copyright © 2007,Oracle. All rights reserved.3 - 15 Oracle Applications R12 Architecture
- 16. Copyright © 2007,Oracle. All rights reserved.3 - 16 Understanding the Oracle Applications R12 Architecture The following topics are included in the Oracle Applications R12 architecture: • Business architecture • Technical architecture
- 17. Copyright © 2007,Oracle. All rights reserved.3 - 17 Business Architecture: Oracle Applications R12 The R12 EBS has five principles that drive its business architecture: • Modern Foundation • Complete • End-to-end Integration • Global • Rapid Implementation
- 18. Copyright © 2007,Oracle. All rights reserved.3 - 18 Technical Architecture: Oracle Applications R12 The following topics are included in the technical architecture of Oracle Applications R12 • Forms-based • Self-service (HTML/JSPs) • Business Intelligence • Mobile
- 19. Copyright © 2007,Oracle. All rights reserved.3 - 19 Basic Technical Architecture of Oracle Applications R12 User Interface Application Logic Application Data & Database Logic Desktop/Client Tier Application Tier Database Tier Internet
- 20. Copyright © 2007,Oracle. All rights reserved.3 - 20 Desktop/Client Tier Desktop/Client Tier Application Tier Database Tier Internet
- 21. Copyright © 2007,Oracle. All rights reserved.3 - 21 Applications Tier Desktop/Client Tier Database Tier Internet Web server/Listener Portal (PHP) Forms server Concurrent Processing server Servlet Engine Java Server Pages (JSP) Discoverer server Reports server Administration server
- 22. Copyright © 2007,Oracle. All rights reserved.3 - 22 Database Tier Desktop/Client tier Internet Application tier Database tier
- 23. Copyright © 2007,Oracle. All rights reserved.3 - 23 The Network • Although the network is not a tier of R12 E-Business Suite’s three-tier architecture, it is a critical component that makes it all work. • R12 EBS allows access through multiple channels including internal networks (LANs/WANs) and external networks (Internet/VPNs). • All of the choices in the network will ultimately affect your performance, for good or bad.
- 24. Copyright © 2007,Oracle. All rights reserved.3 - 24 Oracle Applications Technology Layer The Oracle Applications technology layer is an integrated collection of components used by all Oracle Applications modules: The various components of the Applications technology layer are discussed in the following slides. Manufacturing Oracle Applications Technology Layer CRM Financials HRMS ...
- 25. Copyright © 2007,Oracle. All rights reserved.3 - 25 Oracle Homes The three Oracle Homes fit into the architecture as shown in the following diagram: COMMON_TOP APPL_TOP Apache 1.3 OC4J RSF 10.1 AS 10.1.3 Java Oracle Home Reports 10 Forms 10 RSF 10.1 Developer 10.1.2 C Oracle Home RDBMS Components RSF 10.2 Database Oracle Home
- 26. Copyright © 2007,Oracle. All rights reserved.3 - 26 Oracle Application File System
- 27. Copyright © 2007,Oracle. All rights reserved.3 - 27 Oracle Applications File System: Application Tier apps apps_st tech_st appl comn 10.1.2 10.1.3 Oracle Applications product files (APPL_TOP) Files common across products (COMN_TOP) Oracle Homes for the Applications Technology stack
- 28. Copyright © 2007,Oracle. All rights reserved.3 - 28 Oracle Applications File System: Database Tier data 10.2.0 db tech_stapps_st Oracle 10g database files used by Oracle Applications product files Oracle Home files for the Oracle 10g Database
- 29. Copyright © 2007,Oracle. All rights reserved.3 - 29 Oracle Applications Product Directories <db_name>APPL 12.0.0 fndau 12.0.0 inv 12.0.0 APPS <CONTEXT_NAME>.env admin
- 30. Copyright © 2007,Oracle. All rights reserved.3 - 30 Oracle Applications Manager Oracle Applications Manager is a key system administration tool:
- 31. Copyright © 2007,Oracle. All rights reserved.3 - 31 Rapid Install iASOracle Forms Oracle Reports Graphics Database File SystemApplications Technology Stack Rapid Install
- 32. Copyright © 2007,Oracle. All rights reserved.3 - 32 Rapid Install Utility • Automates many of the steps required for installing Oracle Applications, Release 12 • Simplifies both single-node and multi-node installations • Creates, installs, and configures all of the components required for your Oracle Applications system • Minimizes installation time • Allows you to select languages and the corresponding character sets • Reduces the number of certification issues
- 33. Copyright © 2007,Oracle. All rights reserved.3 - 33 Rapid Install: Tasks With Rapid Install, you can perform the following tasks: Install a new, fully configured Oracle Applications system. Set up the file system and configure server processes for an upgraded system Install a new database node or Applications node technology stack Use a Wizard to guide you through the screens to carry out the selected task
- 34. Copyright © 2007,Oracle. All rights reserved.3 - 34 Summary In this lesson, you should have learned to describe: • The basic architecture of Oracle Applications • The major components of the architecture • The Oracle Applications file system • The Product subdirectory structure and their roles
Editor's Notes
- #5 Complete E-Business Suite from Oracle Oracle E-Business Suite is a comprehensive set of enterprisewide business applications that runs entirely on the Internet. Here, you have the choice to either implement one module or the entire suite. Oracle E-Business Suite (EBS) helps an enterprise make smarter decisions with better information, share unified information across the enterprise, reduce Information Technology (IT) expenses, and enable businesses to run more efficiently. Oracle EBS extends support for internal processes beyond enterprise boundaries to include customers, suppliers, and other trading partners. Collaboration enables you to include your customers and suppliers early on—in product development, planning, procurement, order fulfillment, and other business processes. You can easily share real-time information with partners, such as designs, forecasts, orders, and delivery status. Linking your enterprise with your customers and suppliers offers global visibility and enables bidirectional flow of business information. For instance, your customers can easily configure, price, and order products in real-time on a Web store; and the order information flows seamlessly to order management and shipping for fulfillment. Similarly, suppliers can get self-service access to orders, schedules, and payment status on their personalized portal, which is accessible through a simple Web browser. Connecting enterprises enables you to rapidly respond to dynamic market conditions while improving your ability to meet customer commitments.
- #6 Integrated, Yet Modular Managing a heterogeneous environment with multiple connections between solutions is expensive and complex. Because, whenever you update a point solution, you must go back and review all the integration points and potentially update the integration software itself. Oracle EBS is engineered to work as an integrated system on a common IT infrastructure. Therefore, you can directly pass information from one application to another without incurring incremental integration costs. Oracle’s applications are not only integrated, they are also modular. Based on your business needs, you can implement one module, several modules, or the entire suite. Oracle’s open, standards-based architecture allows you to easily integrate into a heterogeneous environment, enabling you to fully leverage your investment in existing applications.
- #7 Benefits of Oracle E-Business Suite Oracle E-Business Suite supports multiple languages, all currencies, and many regulatory requirements in a single database. You can install all languages in the same Unicode instance. Trading partners can receive business documents in a language of their choice; users can view and enter dates, numbers, and currencies in a format they prefer. There is no separate version of the EBS for the U.S., Japan, or France. Oracle EBS is the first and only comprehensive set of enterprise applications that is integrated around a single, common data model. The unified information architecture of Oracle EBS enables consolidation of data from Oracle and non-Oracle applications, and allows a consistent definition of customers, suppliers, partners, employees, and all business entities across the enterprise. You can create a single, global definition that allows everyone (worldwide) to have access to the same data. The single, common data model ensures that accurate and consistent information and transaction flows across all applications. Oracle EBS extends internal process support beyond enterprise boundaries to include customers, suppliers, and other trading partners. Linking your enterprise with your customers and suppliers offers global visibility and enables bidirectional flow of business information.
- #10 R12 E-Business Suite Footprint You can access the following URLs for more information about the specific Oracle Applications products (listed in parenthesis): http://www.oracle.com/applications/e-business-suite.html (E-Business Suite Applications) http://www.oracle.com/applications/financials/intro.html (Oracle Financials) http://www.oracle.com/applications/cpm/index.html (Corporate Performance Management and Daily Business Intelligence)
- #11 R12 E-Business Suite Footprint (continued) You can access the following URLs for more information about the specific Oracle Applications products (listed in parenthesis): http://www.oracle.com/applications/human_resources/intro.html (Human Resources Management System) http://www.oracle.com/applications/projects/intro.html (Projects)
- #12 R12 E-Business Suite Footprint (continued) You can access the following URLs for more information about the specific Oracle Applications products (listed in parenthesis): http://www.oracle.com/applications/scm/index.html (Supply Chain Planning) http://www.oracle.com/applications/order_mgmt/intro.html (Order Management) http://www.oracle.com/applications/maintenance/eam.html (Asset Lifecycle Management)
- #13 R12 E-Business Suite Footprint (continued) You can access the following URLs for more information about the specific Oracle Applications products (listed in parenthesis): http://www.oracle.com/applications/scm/index.html (Procurement) http://www.oracle.com/applications/manufacturing/intro.html (Manufacturing)
- #14 R12 E-Business Suite Footprint (continued) You can access the following URLs for more information about the specific Oracle Applications products (listed in parenthesis): http://www.oracle.com/applications/logistics/intro.html (Logistics) http://www.oracle.com/applications/plm/intro.html (Product Lifecycle Management) http://www.oracle.com/master-data-management/index.html (Master Data Management)
- #15 R12 E-Business Suite Footprint (continued) You can access the following URLs for more information about the specific Oracle Applications products (listed in parenthesis): http://www.oracle.com/applications/crm/index.html (Customer Relationship Management including Marketing, Sales, Service and Interaction Center Technology)
- #17 Understanding the Oracle Applications R12 Architecture It is easy to talk about the technical architecture of R12 EBS at the very first. In fact, most presentations on R12 architecture do just that. But, the technical architecture is important to support the business needs of R12 E-Business Suite. It is, in fact, the business architecture that supports the business needs of the company. Though it may seem to be just a marketing issue, in an integrated E-Business Suite, the software must support the business needs by being engineered to do so from the start. It is only after the business needs have been addressed that the technical architecture can be determined. In most cases, the technical architecture will be dictated by the business needs. If you do not use this engineering approach, your technical architecture will dictate the business needs that you can fulfill.
- #18 Business Architecture: Oracle Applications R12 The R12 E-Business Suite has five principles that drive its business architecture. The principles are as follows: 1.The R12 E-Business Suite is built on a “modern foundation.” Oracle has embedded all of its new R12 development into open, scalable standards. These standards include using Java/J2EE, HTML, JavaScript (JSP), Internet-accessibility, and centralized management. 2.The R12 E-Business Suite is a complete e-business system. The R12 E-Business Suite provides a comprehensive solution for manufacturing, supply chain management, financial, project, human resource management, marketing, sales and service processes, thereby providing a 360-degree view of the company. 3.R12 E-Business Suite provides a comprehensive solution through an integrated architecture. Crucial to the Oracle Applications R12 architecture, R12’s integration is engineered into the product, thereby providing a fully integrated package—one that is not realized through system integrations and customizations. 4.R12 E-Business Suite is fully globalized. R12 E-Business Suite is accessible via global networks. It accommodates multiple languages and currencies; supports international features, such as flexible date formats and multiple radix support; supports data in the Unicode Character Set (UTF-8); and has accounting and business localizations built into it. 5.R12 E-Business Suite brings considerable tools to the implementation task.These tools include a rapid installation tool, patch application tools, and a host of configuration files and customizable Help files to allow the customer to configure the system to meet their needs. All of these tools help to significantly reduce implementation time.
- #19 Technical Architecture: Oracle Applications R12 The R12 technical architecture is a direct response to the business needs of the customer. In support of these business needs, R12 has developed four architectural modes for users that are accessed and controlled through the Personal Home Page (PHP) or Portal. PHP becomes the gateway through which the user has rights to access all the information to which they have been granted access. Thus, R12 administrative tasks are simplified while operations costs are reduced. The architectural modes equate to common classes of users. Forms-based users are typically people involved in the transactional operations of an organization. They are full-time users who need and demand a robust, full-featured interface. Self-service users are infrequent users who want their interface with R12 to be as simple and as quick as possible. Most users fall in this category. Business intelligence users are senior executives who want an easy-to-use interface that can be used to reveal critical business information. By using a browser, the business intelligence products eliminate the need for users to learn a new system. If they are familiar with browsing, they know the basics of the business intelligence interface. Finally, mobile users cover a surprisingly large range of users whose jobs are likely to keep them away from a readily available, network-connected computer. These users can range from sales representatives through inventory users. By utilizing the mobile interface, they are able to send and receive information at points where it is important and convenient for them.
- #20 Basic Technical Architecture of Oracle Applications R12 A tier is a logical grouping of services, spread across more than one physical machine. Oracle E-Business Suite consists of a three-tier architecture. The diagram in the slide represents the basic technical architecture of the R12 E-Business Suite. Desktop/Client tier: This tier provides the user interface that could comprise desktop computers, laptops, or mobile devices (such as PDAs). Its purpose is to capture and/or display information to the user. Application tier: This tier, sometimes referred to as the middle-tier, is responsible for holding the application logic that supports and manages the various Applications components. Database tier: This tier supports and manages the Oracle database and is responsible for storing and retrieving application data. Note: The connection between the application tier and desktop tier can operate successfully over a wide area network (WAN), because the desktop and application tiers exchange a minimum amount of information—for example, field value comparison differences. In a global operation that has users at various locations, requiring less network traffic reduces the telecommunications costs and improves response times for users.
- #21 Desktop/Client Tier The client interface is provided through HTML for the newer HTML-based applications, and via a Java applet in a Web browser for the traditional Forms-based interface. The desktop tier is responsible for forms that can only be displayed. They can be displayed using Java (forms-based access) or HTML/JavaScript (self-service, business intelligence, or mobile access). The Web listener will download many Java Archive files (.jar files) to your computer, where they are cached. The first time these files are required, it will take longer to start the R12 session because these files need to be downloaded. Subsequently, the cache will greatly increase the speed of the startup. You will need to download the JAR files again only when they have been updated and the copy in cache is no longer valid. For any of the additional modes, the browser is inherently capable of handling the HTML and JavaScript. No additional downloads are necessary. Note: The forms-based mode can communicate to the forms server using sockets, HTTP, or HTTPS protocols. This allows the forms-based mode to be deployed in a number of circumstances. HTTP or HTTPS is also used for the other modes. However, they are not as efficient as sockets. Hypertext transfer protocol (HTTP) is a non-persistent protocol that is the basis for a vast majority of Internet traffic. Therefore, each time you communicate with the server, you must open the connection, communicate, and then close the connection. This non-persistent protocol is the source for many HTTP-related performance challenges. Hypertext transfer protocol secure (HTTPS) adds encryption to HTTP and helps to secure information traffic, especially over the Internet. However, since encryption is added, the performance challenges may be further increased. Sockets is a persistent protocol in which a connection is opened for a session and stays open until the session ends. Therefore communication can occur between a desktop and server without going through the OPEN/CLOSE steps each time. HTTP/HTTPS may be preferred over sockets when sending traffic over a public network, like the Internet, whereas Sockets may be the preferred protocol for forms-based traffic.
- #22 Applications Tier The applications tier is responsible for storing and executing most of the business logic associated with R12. It also provides all the non-database services required in an R12 instance (for example, Web listeners, Forms servers, Reports servers, Concurrent Processing, and so on). The application tier is the key tier consisting of a host of services within the R12 architecture. It is simpler to state that all components that are not part of either the desktop tier (that is, Forms display) or the database tier are assigned to the applications tier. Prominently, six servers comprise the application tier for Oracle Applications: Web server: The Oracle HTTP Server (powered by Apache) acts as the Web server. It processes the requests received over the network from the desktop clients, and includes additional components such as: Web Listener Java Servlet Engine JavaServer Pages (JSP) The Web Listener component of the Oracle HTTP Server accepts incoming HTTP requests (for particular URLs) from client browsers. Forms server: The Forms server hosts the Oracle Applications forms and associated run-time engine that supports the professional interface. It is a component of the Oracle Developer 6i, which mediates the communication between the desktop client and the Oracle database server, displaying client screens and initiating changes in the database according to user actions. It caches data and provides it to the client as required—for example, when scrolling through multiple order lines that exceed the limitations of a single screen. The Forms server communicates with the desktop client using these protocols: Standard HTTP network connection Secure HTTPS network connection TCP/IP connection Reports server: The Reports server is automatically installed on the same node as the Concurrent Processing server, and its reports are contained in the same directory as the concurrent processing reports. However, reports generated by the Reports server are monitored and administered separately from the concurrent processing reports. It dynamically selects the language of the report at run time, so that users see the reports in the language they prefer. Discoverer server (optional): The Discoverer server complements the Reports server by allowing performance of ad hoc queries and analysis of the resulting query output. It also allows users to perform projections based on possible changes to the business environment or other strategic factors. Concurrent Processing server: User interactions with Oracle Applications data are conducted via HTML-based Applications or the more traditional Forms-based Applications. However, there are reporting programs and data update programs that need to run either periodically, or on an ad hoc basis. These programs that operate in the background while users continue to work on other tasks, may contain a large number of data-intensive computations, and run using the concurrent processing architecture. To ensure that resource-intensive concurrent processing operations do not interfere with interactive operations, they are run on a specialized server, the Concurrent Processing server. Processes that run on the concurrent processing server are called concurrent requests. Administration server: The Administration server is located on the node on which you maintain the data model and the data in your Oracle Applications database. You carry out the following operations from this server: Upgrading Oracle Applications Applying database patches to Oracle Applications Maintaining Oracle Applications data Note: The Oracle HTML-based (formerly known as Self-Service) Applications: Do not use Oracle Forms for the interface Are designed in pure HTML and JavaScript Dynamically generate HTML pages by executing Java code Use a metadata dictionary for flexible layout Operate by direct connection to the Web server
- #23 Database Tier The database tier contains the Oracle database server, which stores all the data maintained by Oracle Applications. The database also stores the Oracle Applications online Help information. More specifically, the database tier contains the Oracle data server files and Oracle Applications database executables that physically store the tables, indexes, and other database objects for your system. In general, the database server does not communicate directly with the desktop clients, but with the servers on the application tier, which mediates the communications between the database server and the clients. The database tier is responsible for the storage, retrieval, and management of all of the data associated with your R12 instance. This means that any SQL or PL/SQL will ultimately be executed on the database tier machine. The database tier is involved in almost everything, because, regardless of the mode, all data is queried, inserted, updated, or deleted on the database tier. The database tier can now significantly benefit from Oracle’s clustering technology, by spreading the database activity across a cluster of machines.
- #24 The Network Most discussions about architecture make little, if any, reference to it. And yet, it can have a great impact on your performance. The network is the most important but the least visible component of the R12 architecture. The connection links themselves can vary from slow-speed dial-up connections to high-speed fiber optic channels. For example, you can have a fast PC running on an R12 instance with a good applications tier and a clustered database tier, but still end up with bad results. If you are using a slow connection either directly from that machine (for example, a dial-up connection) or a shared connection with considerable traffic (a corporate T-1 line that already has considerable bandwidth usage), then you can experience poor performance. This problem cannot be attributed to a tier because it is a network-related issue.
- #25 Oracle Applications Technology Layer The Oracle Applications technology layer is an integrated collection of components whose functionality is applicable to all Oracle Applications modules. Components in the Oracle Applications technology layer include: Applications DBA (AD) Application Object Library (FND) Applications Utilities (AU) Common Modules (AK) Workflow (WF) Alert (ALR) OA Framework (FWK) Oracle XML Publisher (XDO)
- #26 Oracle Homes Oracle E-Business Suite (EBS) uses the latest database version, Oracle 10g. On the middle tier, Release 12 uses Oracle Application Server 10g and Oracle JDeveloper 10.1.3 for Web-based Framework applications. On the client, Oracle EBS uses version 5.0 of the Sun Java Plug-in. Instructor Note These ORACLE_HOME changes represent a significant update to the architecture and should be given appropriate consideration.
- #28 Oracle Applications File System: Application Tier Oracle Applications uses components from different Oracle products. The product files are stored in several top-level directories, including the following: The apps/apps_st/appl (APPL_TOP) directory contains the product directories and files for Oracle Applications. The apps/apps_st/comn or (COMMON_TOP or COMN_TOP) directory contains directories and files used across products. The apps/tech_st/10.1.2 directory contains the ORACLE_HOME used for the Applications Technology stack tools components. The apps/tech_st/10.1.3 directory contains the ORACLE_HOME used for the Applications Technology stack Java components.
- #29 Oracle Applications File System: Database Tier Oracle Applications uses components from different Oracle products. The product files are stored in several top-level directories, including the following: The db/apps_st/data (DATA_TOP) directory is located on the database node machine, and contains the system tablespaces, redo log files, data tablespaces, index tablespaces, and the database files. The db/tech_st/10.2.0 directory is located on the database node machine, and contains the ORACLE_HOME for the Oracle10g Database.
- #30 Oracle Applications Product Directories Each product has its own subdirectory under APPL_TOP, and the Oracle Applications base release is typically reflected in the name of the subdirectory. For R12, the base release is 12.0.0. The directory path for a particular product is defined by the value of the environment variable &lt;PROD&gt;_TOP, where &lt; PROD&gt; is the name of the product schema. For example, the slide above displays three product directories. If the directory path to APPL_TOP is /d01/prodappl, the paths to these product directories would be specified in the &lt;CONTEXT_NAME&gt;.env file as follows: APPL_TOP=/u01/oracle/VIS/apps/apps_st/appl AU_TOP= /u01/oracle/VIS/apps/apps_st/appl/au/12.0.0 FND_TOP = /u01/oracle/VIS/apps/apps_st/apps/fnd/12.0.0 INV_TOP= /u01/oracle/VIS/apps/apps_st/apps/inv/12.0.0 All Oracle Applications products, regardless of the license status, are installed in the database and the file system. However, files for unlicensed products should not be removed. Conversely, multiple releases and product versions must not be installed in a single APPL_TOP directory.
- #31 Oracle Applications Manager Oracle Applications Manager (OAM) is a sophisticated tool that supports managing and monitoring of an Oracle Applications system from an HTML-based central control console. Among other tasks, Oracle Applications Manager can help you to: Configure and administer your system Diagnose and correct problems Manage patches Monitor and tune performance Monitor system security OAM is built into Oracle Applications and complements the features of Oracle Enterprise Manager.
- #32 Rapid Install Rapid Install comprises information about the Rapid Install Wizard interface, and the setup steps to be completed before you begin an installation or upgrade of an Oracle Applications system. Performing an Installation To set up a new Applications system, follow the appropriate screens in the Rapid Install Wizard. Performing an Upgrade Rapid Install is used in both pre-upgrade and post-upgrade processing during an upgrade from Oracle Applications, Release 11i, to Release 12. Installing Technology Stack Components Use Rapid Install to install new or updated software components as part of a technology stack upgrade. Finishing Tasks The finishing tasks are necessary to finish a new installation, an upgrade, or a technology stack installation for Oracle Applications, Release 12. There are also other tasks, such as required and conditional tasks that may be needed only for systems with a specific functionality. The following are the components of Rapid Install: Oracle database with all the necessary database files (dbfs) Applications Technology stack comprising Oracle Developer products and includes the Forms server, the Reports server and graphics, and Internet Application Server (iAS), which includes the Oracle HTTP Server Oracle Applications file system
- #34 Rapid Install: Tasks Rapid Install employs the Rapid Install Wizard interface that guides you through the screens used to carry out the selected task. On the Wizard screens, you enter configuration values for your system; these will typically be saved in the Applications database for later use. Previous releases of Oracle Applications used only a text file, config.txt, to store the supplied configuration values. Release 12 also uses this file (config.txt)in cases where the database has not yet been created, perhaps because of an interruption in the installation process. In Release 12, the name of this configuration file has changed, and it now includes the database SID, to give a file name of conf_&lt;SID&gt;.txt (for example, conf_PROD.txt). This file stores the information collected by Rapid Install for all database and Applications nodes. Rapid Install stores the same conf_&lt;SID&gt;.txt file in three separate locations: Database 10g R2 &lt;ORACLE_HOME&gt;/appsutil: Used on database nodes, on Applications nodes in multinode installations, and in upgrades. It is permanently stored and not deleted. $INST_TOP: Used on Applications nodes in multinode installations, and in upgrades. It is permanently stored and not deleted. /tmp/&lt;time stamp&gt;: Used by Rapid Install during the installation run. It is deleted when the installation is completed. The configuration file is also employed in multinode (distributed) installations, where you want to repeat the installation on multiple machines (nodes). In such a case, you can copy the configuration file from one machine to another to avoid having to re-enter the information on each machine. Re-entering information would be time-consuming and prone to error. Storing the configuration details allows you to enter the information only once, and then use same system configuration to run the installation on all required machines. If you are installing in an environment in which different machines are used to support the database and Applications tiers (as is typically the case), you run Rapid Install on each machine in turn, starting with the database machine. For example, you might have three machines: one for the database tier and two for the Applications tier. So you would run Rapid Install three times, once on each machine. Though the order in which you run Rapid Install on the Applications tier machines does not matter, you cannot run it on more than one machine in an Applications system at the same time. Rapid Install uses AutoConfig as the main configuration engine. It supplies configuration information to AutoConfig, which stores the configuration for each node in a node-specific configuration file called a context file. Note: AutoConfig is delivered with, and required by, a new installation of Oracle Applications, Release 12. AutoConfig simplifies and standardizes the management of your system configuration; at any time after the initial installation, you can use the Configuration Editor in Oracle Applications Manager to update various system settings, and then run an AutoConfig script to populate the system configuration files with new values.